Efficacy of different botanicals as ovicidal molecules and oviposition deterrents against maize stem borer, Chilo partellus (Swinhoe)
2017
Among the botanicals tested as ovicides against Chilo partellus eggs, neem oil 5% was found to be most effective in inhibiting hatching of eggs up to 95% followed by chlorpyriphos 0.2% (86%), neem oil 1.0% (79%), NSKE 5% and Jatropha leaf extract 5% (78%). As oviposition deterrents, neem leaf extract 5% showed higher efficacy in deterring the oviposition by C. partellus adults recording only 16.6% oviposition followed by Jatropha leaf extract 5% (19.2%) and neem oil 5% (22.6%), neem oil 1.0% (28.3%) and NSKE 5% (28.7%). Notchi leaf extract 5% was found to be ineffective both as an ovicide and oviposition deterrent.
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